ON THE BEHAVIOUR OF SOME SULPHUR COMPOUNDS ADDED TO SINTERED IRON-BASED FRICTION MATERIALS
Ladislav JeníčekProfessorTechnical University, PragueIvan NedbalAssistantTechnical University, PragueV. DufekSenior Research WorkerNational Research Institute for Machine Design, Běchovice, Czechoslovakia
ABI
Abstract
The results of previous studies of frictional properties of sintered iron-based brake linings containing additions of graphite, molybdenum disulphide, lead, corundum (Al2O3), and barytes (BaSO4) are summarized.Interpretation of qualitative topography and of quantitative analysis by means of electron-microprobe analysis supports the idea of the formation of BaAl2O4 in the regions of direct contact between BaSO4 and Al2O3.Further results concerning the behaviour of sulphur, obtained by means of electron-microprobe analysis, are also discussed.